Well, I've come to my knowledge that Regals and Grand Prix's may have different radiators. I've looked on a bunch of Grand Prix's and they seem to have a twist plug, where as my Regal uses a 1/4" square drive to turn the plug.
Anyways, my problem is, i can turn the plug, but how do you get the plug out? I've tried pulling it out, but I cant get it.
This site has some pics of what the plug looks like, but I'm still at a stand still since I cant get the damn thing out.
Applicable to '97 and up Buick Regal and Century and '97 - '03 Pontiac Grand Prix
1/4" drive tool and drain plug removed from radiator for illustration purposes
Coolant being drained
Location of drain plug on removed radiator